T A 2.0 × 10²-km-long high-voltage transmission line 2.0 cm in diameter carries a steady current of 1.0 x 103 A. If the conductor is copper with a free charge density of 8.5 × 1028 electrons/m³, how many years does it take one electron to travel the full length of the cable?

T A 2.0 × 10²-km-long high-voltage transmission line 2.0 cm in diameter carries a steady current of 1.0 x 103 A. If the conductor is copper with a free charge density of 8.5 × 1028 electrons/m³, how many years does it take one electron to travel the full length of the cable?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: Current And Direct Current Circuits

Section: Chapter Questions

Problem 17P

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Question

T A 2.0 x 102-km-long high-voltage transmission
line 2.0 cm in diameter carries a steady current of
1.0 x 10° A. If the conductor is copper with a free
charge density of 8.5 × 1028 electrons/m³, how many
years does it take one electron to travel the full length
of the cable?

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